tag:blogger.com,1999:blog-143925273655347334.post7832899424249414037..comments2024-03-27T07:30:02.390+00:00Comments on drsolly: Education, 0-10drsollyhttp://www.blogger.com/profile/15954188290191548178noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-143925273655347334.post-23795214050751317712015-10-12T17:47:45.942+01:002015-10-12T17:47:45.942+01:00I tell you a number, and you work out, what number...I tell you a number, and you work out, what number when multiplied by itself, gives that number. So if I give you81, the square root is 9. <br /><br />It gets more difficult when the number is several digits long. You can do it with any decent calculator (but we didn't have them then). But when the number gets longer than several digits, you can't do it with a calculator or with a spreadsheet.<br /><br />I set a cache once that needed you to do long multiplication to multiply together two 40 digit numbers. Unless you could find an easier way (using a calculator was allowed, but wouldn't help you).<br />drsollyhttps://www.blogger.com/profile/15954188290191548178noreply@blogger.comtag:blogger.com,1999:blog-143925273655347334.post-36956742209429074022015-10-12T11:58:31.813+01:002015-10-12T11:58:31.813+01:00What IS extraction of square roots? - Aged 55 What IS extraction of square roots? - Aged 55 really_old_blokehttp://ten_year_olds_r_really_clever.comnoreply@blogger.comtag:blogger.com,1999:blog-143925273655347334.post-30105093567735359642015-10-10T00:41:56.501+01:002015-10-10T00:41:56.501+01:00I enjoyed reading this post, thankyou. Shame you n...I enjoyed reading this post, thankyou. Shame you never got into Enid's Secret 7 or Famous 5, though. I look forward to seeing if you discovered Tolkien during your secondary schooling.Anonymoushttps://www.blogger.com/profile/10874986622698827580noreply@blogger.com